Methods for, and limitations to, the generation of entangled states of trapped atomic ions are examined. As much as possible, state manipulations are described in terms of quantum logic operations… (More)

Quantum mechanics allows for many-particle wavefunctions that cannot be factorized into a product of single-particle wavefunctions, even when the constituent particles are entirely distinct. Such… (More)

We present results from an experimental study of the decoherence and decay of quantum states of a trapped atomic ion’s harmonic motion interacting with several types of engineeredreservoirs. We… (More)

We have prepared the internal states of two trapped ions in both the Bell-like singlet and triplet entangled states. In contrast to all other experiments with entangled states of either massive… (More)

The theory of quantum mechanics applies to closed systems. In such ideal situations, a single atom can, for example, exist simultaneously in a superposition of two different spatial locations. In… (More)

Entangled states are both a crucial component in quantum computers, and of great interest in their own right, highlighting the inherent nonlocality of quantum mechanics. As part of the drive toward… (More)

We report preparation in the ground state of collective modes of motion of two trapped 9B 1 ions. This is a crucial step towards realizing quantum logic gates which can entangle the ions’ internal… (More)

In this study a staff planning model for a health service clinic has been developed and validated using an example case of a health service clinic. The primary purpose of this research is to develop… (More)